S92.504B Nondisplaced unspecified fracture of right lesser toe(s), initial encounter for open fracture

ICD-10-CM S92.504B: Nondisplaced Unspecified Fracture of Right Lesser Toe(s), Initial Encounter for Open Fracture

ICD-10-CM code S92.504B identifies an initial encounter for an open, nondisplaced, unspecified fracture of the right lesser toe(s). The terminology record is active and classifies this concept as an injury or poisoning. Related codes distinguish this encounter from subsequent care and routine healing. 1 4

Plain-language overview

The official terminology record assigns this code the preferred name of nondisplaced unspecified fracture of right lesser toe(s), initial encounter for open fracture, and lists an abbreviation for nondisp unsp fx right lesser toe(s), init for opn fx. 1

What this code represents

The official label for S92.504B is nondisplaced unspecified fracture of right lesser toe(s), initial encounter for open fracture, and the concept's semantic type is categorized as an injury or poisoning. 1

The parent concept for this specific code is S92.504, which is the broader term for a nondisplaced unspecified fracture of the right lesser toe(s) without specifying the encounter type. 1

Coding details

The seventh character B in S92.504B specifies an initial encounter for an open fracture, whereas the character A designates an initial encounter for a closed fracture of the same right lesser toe. 4

Distinct codes separate laterality and displacement, such as S92.505B for a nondisplaced left lesser toe and S92.501B for a displaced right lesser toe, both during an initial open fracture encounter. 4

Subsequent encounters for the same nondisplaced right lesser toe fracture use different seventh characters, including D for routine healing and K for nonunion, replacing the initial encounter character B. 4

Documentation considerations

The terminology record establishes the code's active status, its parent concept of S92.504, and its classification under the injury or poisoning semantic type for coding reference. 1

What the sources add

The terminology record provides the active status and exact preferred name, while the code tree listing provides operational context by showing how S92.504B relates to closed, subsequent, and opposite-foot variations. 1 4

Clinical context

General clinical literature indicates fracture healing is a lengthy process taking weeks to months depending on fracture location, severity, and treatment, though this does not define the specific toe fracture code. 2

Sources

1. ICD-10-CM S92.504B terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Methods to accelerate fracture healing – a narrative review from a clinical perspective — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
4. ICD-10-CM 2024 | S99 - Other and unspecified injuries of ankle and foot — unboundmedicine.com; accessed 2026-07-27.